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openSUSE Leap 15.6 libssh2_org Moderate Denial of Service 2026-3076-1

opensuse
Calendar Grey July 16, 2026
Scroller Opensuse Esm H88
This update for libssh2_org addresses a DoS issue in openSUSE, with installation steps and advisory details.
An update that solves one vulnerability can now be installed.

Description

This update for libssh2_org fixes the following issue

* CVE-2026-55199: pre-Authentication DoS via SSH_MSG_EXT_INFO Handler

(bsc#1268530).

Topics%20covered

Topics Covered

security advisory moderate denial of service OpenSUSE patch instructions libssh2_org

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3076=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3076=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3076=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-3076=1

Package List

* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)

* libssh2-devel-1.11.0-150600.20.3.1

* libssh2-1-1.11.0-150600.20.3.1

* libssh2_org-debugsource-1.11.0-150600.20.3.1

* libssh2-1-debuginfo-1.11.0-150600.20.3.1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)

* libssh2-1-32bit-1.11.0-150600.20.3.1

* libssh2-1-32bit-debuginfo-1.11.0-150600.20.3.1

* openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)

* libssh2-devel-1.11.0-150600.20.3.1

* libssh2-1-1.11.0-150600.20.3.1

* libssh2_org-debugsource-1.11.0-150600.20.3.1

* libssh2-1-debuginfo-1.11.0-150600.20.3.1

* openSUSE Leap 15.6 (aarch64_ilp32)

* libssh2-1-64bit-1.11.0-150600.20.3.1

* libssh2-1-64bit-debuginfo-1.11.0-150600.20.3.1

* openSUSE Leap 15.6 (x86_64)

* libssh2-1-32bit-1.11.0-150600.20.3.1

* libssh2-1-32bit-debuginfo-1.11.0-150600.20.3.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)

* libssh2-1-32bit-1.11.0-150600.20.3.1

* libssh2-1-32bit-debuginfo-1.11.0-150600.20.3.1

* SUSE Linux Enterprise...

Read the Full Advisory

References

* bsc#1268530

## References:

* https://www.suse.com/security/cve/CVE-2026-55199.html

* https://bugzilla.suse.com/show_bug.cgi?id=1268530

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3076-1
Release Date: 2026-07-16T13:04:25Z
Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory moderate denial of service OpenSUSE patch instructions libssh2_org

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